Caramelized Onion Gruyere And Spinach Crustless Quiche Recipe

This crustless quiche is a quick and easy weeknight meal or a delightful weekend brunch! Sweet caramelized onions, earthy spinach, and nutty Gruyere cheese combine in a creamy egg custard for a flavor explosion. Perfect for using up leftover vegetables, this recipe is easily adaptable to your favorite ingredients. Whether you use fresh or frozen spinach, this recipe delivers a delicious and satisfying quiche in under an hour!

Prep Time 20 mins
Cook Time 70 mins
Calories 275.2 kcal
Protein 40g
Rating Be the first
Caramelized Onion Gruyere And Spinach Crustless Quiche 35

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Forktionary editorial kitchen team

The Forktionary Kitchen Team

Adapted from Food.com, then tested & standardized by Forktionary.

Ingredients for Caramelized Onion Gruyere And Spinach Crustless Quiche

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How to Make Caramelized Onion Gruyere And Spinach Crustless Quiche

  1. Preheat oven to 375°F (190°C).
  2. Caramelize 1 large onion, thinly sliced, in 1 tablespoon canola oil over medium-high heat for 15-20 minutes, stirring occasionally, until deeply golden brown.
  3. Squeeze excess moisture from 10 oz (284g) frozen spinach (or 5 oz (142g) fresh spinach) by wrapping it in a clean kitchen towel and squeezing firmly.
  4. In a large bowl, whisk together 6 large eggs, 1/2 cup (120ml) milk, 1/4 teaspoon salt, 1/4 teaspoon black pepper, and a pinch of freshly grated nutmeg.
  5. Lightly grease a deep 9-inch pie dish with cooking spray or oil.
  6. Spread the caramelized onions evenly over the bottom of the prepared pie dish. Top with the squeezed spinach and 4 oz (113g) shredded Gruyere cheese.
  7. Pour the egg mixture over the filling, ensuring it's evenly distributed.
  8. Bake for 40-45 minutes, or until the quiche is set and lightly golden brown.
  9. Let cool slightly before slicing and serving. Garnish with fresh herbs (optional) and enjoy with fresh fruit and popovers (optional).

Nutrition Information (Approximate per serving)

Sodium

11 g

Sugar

7g

Fat

44g

Carbs

3g

Recipe Tags (Choose a tag and find related recipes!)

Time To Make Course Main Ingredient Cuisine Preparation North American Omelets And Frittatas Breakfast Eggs Dairy Vegetables American Vegetarian Cheese Eggs Dietary Low Sodium Low Calorie Low Carb Low In Something Onions 4 Hours Or Less

Frequently Asked Questions

How long does it take to make Caramelized Onion Gruyere And Spinach Crustless Quiche?

Caramelized Onion Gruyere And Spinach Crustless Quiche takes about 90 minutes from start to finish — roughly 20 minutes to prepare and 70 minutes to cook.

How many calories are in Caramelized Onion Gruyere And Spinach Crustless Quiche?

Caramelized Onion Gruyere And Spinach Crustless Quiche has approximately 275.2 calories per serving, with about 40 g protein, 3 g carbohydrates and 26 g fat.

What ingredients do I need for Caramelized Onion Gruyere And Spinach Crustless Quiche?

The key ingredients for Caramelized Onion Gruyere And Spinach Crustless Quiche are Onion, Frozen Spinach, Gruyere, Eggs, Milk, Nutmeg. See the full list with measurements above.

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